Production ready

frontend/middleware.ts

@@ -0,0 +1,57 @@
+import { NextRequest, NextResponse } from 'next/server'
+
+const LANDING_ALLOWED_PATHS = ['/', '/blog', '/privacy', '/admin', '/use-cases', '/features']
+const NEXT_METADATA_PATHS = [
+  '/favicon.ico',
+  '/icon',
+  '/apple-icon',
+  '/opengraph-image',
+  '/twitter-image',
+]
+
+function isAllowedLandingPath(pathname: string): boolean {
+  if (pathname === '/') return true
+
+  return LANDING_ALLOWED_PATHS
+    .filter((path) => path !== '/')
+    .some((path) => pathname === path || pathname.startsWith(`${path}/`))
+}
+
+function isStaticOrMetadataPath(pathname: string): boolean {
+  // Never treat API routes as static paths
+  if (pathname.startsWith('/api')) return false
+
+  if (pathname.startsWith('/_next')) return true
+
+  if (/\.[^/]+$/.test(pathname)) return true
+
+  return NEXT_METADATA_PATHS.some(
+    (path) => pathname === path || pathname.startsWith(`${path}/`)
+  )
+}
+
+export function middleware(request: NextRequest) {
+  if (process.env.NEXT_PUBLIC_LANDING_ONLY_MODE !== 'true') {
+    return NextResponse.next()
+  }
+
+  const { pathname } = request.nextUrl
+
+  if (isStaticOrMetadataPath(pathname)) {
+    return NextResponse.next()
+  }
+
+  if (isAllowedLandingPath(pathname)) {
+    return NextResponse.next()
+  }
+
+  const redirectUrl = request.nextUrl.clone()
+  redirectUrl.pathname = '/'
+  redirectUrl.search = ''
+
+  return NextResponse.redirect(redirectUrl, 307)
+}
+
+export const config = {
+  matcher: '/:path*',
+}